package com.ruoyi.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import com.ruoyi.common.constant.WarningTypeConstants;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 * 
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils
{
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", 
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     * 
     * @return Date() 当前日期
     */
    public static Date getNowDate()
    {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     * 
     * @return String
     */
    public static String getDate()
    {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime()
    {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow()
    {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format)
    {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date)
    {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date)
    {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts)
    {
        try
        {
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e)
        {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime()
    {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str)
    {
        if (str == null)
        {
            return null;
        }
        try
        {
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e)
        {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate()
    {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2)
    {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate)
    {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor)
    {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor)
    {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    public static void main(String[] args) {

        String t1Str = "2022-10-01 08:00:00";
        String t2Str = "2022-10-01 08:20:00";
        Map<String, Date> map = new HashMap<String, Date>();
        calculationDate(t1Str, t2Str, WarningTypeConstants.TONG_BI);

        Date beginDatetime = map.get("beginDatetime");
        Date endDatetime = map.get("endDatetime");

        // 计算两时间的时间差
    }

    public static Map<String, Date> calculationDate( String sDateStr, String eDateStr, int warningType){
        Date beginDateTime = DateUtils.dateTime(DateUtils.YYYY_MM_DD_HH_MM_SS, sDateStr);
        Date endDateTime = DateUtils.dateTime(DateUtils.YYYY_MM_DD_HH_MM_SS, eDateStr);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(beginDateTime);
        long sTimestamp = calendar.getTimeInMillis();
        calendar.setTime(endDateTime);
        long eTimestamp = calendar.getTimeInMillis();
        // 两日期的时间差  环比的时候需要用到
        Long diff = eTimestamp - sTimestamp;
        System.out.println(diff);
        if(WarningTypeConstants.TONG_BI == warningType){// 同比 2022-10-01  至  2022-10-30  推算时间    2021-10-01 至 2021-10-30
             if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_SECOND  && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_SECOND * 60){
                 beginDateTime = DateUtils.addMinutes(beginDateTime, -1);
                 endDateTime = DateUtils.addMinutes(endDateTime, -1);
            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_SECOND  && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_HOUR){
                 beginDateTime = DateUtils.addHours(beginDateTime, -1);
                endDateTime = DateUtils.addHours(endDateTime, -1);
            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_HOUR && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY){
                beginDateTime = DateUtils.addDays(beginDateTime, -1);
                endDateTime = DateUtils.addDays(endDateTime, -1);
            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY  && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY * 30){
                beginDateTime = DateUtils.addYears(beginDateTime, -1);
                endDateTime = DateUtils.addYears(endDateTime, -1);
            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY * 30){
                beginDateTime = DateUtils.addYears(beginDateTime, -1);
                endDateTime = DateUtils.addYears(endDateTime, -1);
            }else{

            }
        }else if(WarningTypeConstants.HUAN_BI == warningType){  //2022-10-01  至  2022-10-30  推算时间    2021-09-01 至 2021-09-30
            if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_SECOND  && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_HOUR){
                sTimestamp = sTimestamp - diff;
                eTimestamp = eTimestamp - diff;

                calendar.setTimeInMillis(sTimestamp);
                beginDateTime = calendar.getTime();

                calendar.setTimeInMillis(eTimestamp);
                endDateTime = calendar.getTime();

                // 3600000L  86400000L
            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_HOUR && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY){
                sTimestamp = sTimestamp - diff;
                eTimestamp = eTimestamp - diff;

                calendar.setTimeInMillis(sTimestamp);
                beginDateTime = calendar.getTime();

                calendar.setTimeInMillis(eTimestamp);
                endDateTime = calendar.getTime();

                // 86400000L 86400000L*30
            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY  && diff < org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY * 30){
                beginDateTime = DateUtils.addMonths(beginDateTime, -1);
                endDateTime = DateUtils.addMonths(endDateTime, -1);

            }else if(diff >= org.apache.commons.lang3.time.DateUtils.MILLIS_PER_DAY * 30){
                beginDateTime = DateUtils.addYears(beginDateTime, -1);
                endDateTime = DateUtils.addYears(endDateTime, -1);

            }else{
                System.out.println("err");
            }
        }
//
//        System.out.println(String.format("开始时间%s, 结束时间%s", sDateStr, eDateStr));
//        System.out.println(String.format("开始时间%s, 结束时间%s", DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS , beginDateTime), DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS ,endDateTime)));
        HashMap<String, Date> dateTimeMap = new HashMap<String, Date>();
        dateTimeMap.put("begintime", beginDateTime);
        dateTimeMap.put("endtime", endDateTime);
        return dateTimeMap;
    }

}
